Matthew J. Alexander is a partner in Mayer Brown’s Washington, D.C. office. He focuses his practice on white collar criminal defense, government and internal investigations, and corporate compliance.

Matthew regularly counsels and defends corporations and individuals in a variety of enforcement matters, including the Foreign Corrupt Practices Act (FCPA), federal securities and anti-money laundering (AML) laws and regulations, the False Claims Act (FCA), insider trading laws, healthcare fraud, as well as advising clients with respect to embargoes administered by the US Department of Treasury, Office of Foreign Assets Control (OFAC).

Matthew has extensive experience in designing, managing, executing, and presenting global investigations before Boards of Directors and numerous enforcement authorities, including the US Department of Justice (DOJ), Securities and Exchange Commission (SEC), and the World Bank’s Integrity Vice Presidency.

In addition to regularly presenting to enforcement authorities, Matthew counsels clients with respect to anti-corruption, international trade, and AML compliance policies, procedures, and training. He regularly designs and conducts due diligence and provides advice in relation to corporate transactions and has conducted numerous compliance and fraud risk assessments and reviews for both public and private companies.

Matthew has been externally recognized as a leading White Collar and Investigations expert by the following publications:

  • Law360 - Rising Star (White Collar)
  • Benchmark Litigation - 40 & Under Hot List
  • Global Investigations Review - 40 Under 40
  • Who’s Who Legal: Investigations - Future Leaders list

Matthew regularly speaks and writes on white collar, investigations, and compliance topics. He also previously served as an Associate Editor and regular columnist for the Business Crimes Bulletin.

Securities Investigations: Internal, Civil and Criminal


Georgetown University Law Center, JD

University of Notre Dame, BA, Political Science


  • District of Columbia
  • Pennsylvania


  • Associate Editor and regular columnist, Business Crimes Bulletin